The pea-brained characters, played by Jim Carrey and Jeff Daniels, are back in the sequel to 1994's Dumb and Dumber – and they're still "oblivious to the world around them," Daniels tells PEOPLE in this week's issue. "We haven't gained one ounce of intelligence in 20 years."

"I'm not quite at Sloan's level; I'd say I could possibly teach seventh grade economics," she adds, referring to her character, Sloan Sabbith. The upcoming third season of The Newsroom will be its last, HBO announced in January.

"I heard my name, and I go, 'Oh, that's what it sounds like when you win,' " Daniels, who won for his lead role as the self-righteous anchor Will McAvoy on The Newsroom, told reporters at HBO's afterparty on the Plaza of the Pacific Design Center, Sunday. "You hear your name just like that. 'Well, I won!' "

Going into the ceremony, the favorite appeared to be Breaking Bad's Bryan Cranston, who had won for the past three years. When Daniels's name was announced instead, reported The New York Times, "There were audible gasps of 'Whoa!' and 'What?' in the auditorium."